Packaging structure, fabrication method thereof, and display apparatus

Abstract

Disclosed are a packaging structure, a fabrication method thereof, and a display apparatus. The packaging structure includes: a first base; a packaging body on the first base; and a first packaging layer on a side of the packaging body away from the first base and including at least two inorganic layers sequentially stacked, wherein the at least two inorganic layers include a first inorganic layer closest to the packaging body, and the first inorganic layer contains carbon atoms and nitrogen atoms.

What is claimed is: 
     
         1 . A packaging structure, comprising:
 a first base;   a packaging body on the first base; and   a first packaging layer on a side of the packaging body away from the first base and comprising at least two inorganic layers sequentially stacked, wherein the at least two inorganic layers comprise a first inorganic layer closest to the packaging body, and the first inorganic layer contains carbon atoms and nitrogen atoms,   wherein the at least two inorganic layers further comprise a second inorganic layer made of a material comprising SiN n , where 0.6<n<1.   
     
     
         2 . The packaging structure according to  claim 1 , wherein the first inorganic layer is made of a material comprising SiC x N y , where 0<x≤2 and 0<y≤2. 
     
     
         3 . The packaging structure according to  claim 1 , wherein the at least two inorganic layers further comprise a third inorganic layer, the third inorganic layer being on a side of the second inorganic layer away from the packaging body, or being between the second inorganic layer and the first inorganic layer; and
 the third inorganic layer is made of a material comprising SiO m N g , where 1<m≤2, and 0≤g<0.7.   
     
     
         4 . The packaging structure according to  claim 1 , wherein along a direction away from the packaging body, the at least two inorganic layers have sequentially increasing refractive indexes. 
     
     
         5 . The packaging structure according to  claim 1 , wherein the at least two inorganic layers comprise three inorganic layers, and along a direction away from the packaging body, refractive indexes of the three inorganic layers respectively range: from 1.3 to 1.6; from 1.4 to 1.8; and from 1.6 to 2.0. 
     
     
         6 . The packaging structure according to  claim 1 , wherein the first packaging layer has a thickness between 0.3 μm and 2 μm. 
     
     
         7 . The packaging structure according to  claim 1 , wherein the packaging body comprises: a color conversion layer, and the color conversion layer comprises quantum dots. 
     
     
         8 . The packaging structure according to  claim 1 , wherein the packaging body comprises a light-emitting structure, the light-emitting structure comprises a light-emitting layer, and the light-emitting layer comprises quantum dots or an organic light-emitting material. 
     
     
         9 . The packaging structure according to  claim 8 , wherein the light-emitting structure further comprises: a first cathode, an electron transport layer, a hole transport layer, and a first anode sequentially stacked, and wherein the light-emitting layer is disposed between the electron transport layer and the hole transport layer. 
     
     
         10 . A display apparatus, comprising: the packaging structure according to  claim 1 . 
     
     
         11 . A display apparatus, comprising: the packaging structure of  claim 7 , wherein the display apparatus further comprises: a plurality of light-emitting devices each configured to emit light of a preset color; and
 the color conversion layer comprises a plurality of light-exiting parts each corresponding to one of the light-emitting devices and disposed on a light-emitting side of a corresponding light-emitting device, and wherein each light-exiting part is configured to receive light emitted by the corresponding light-emitting device, and emit light of the same color as or a different color from the preset color.   
     
     
         12 . The display apparatus according to  claim 11 , wherein the light-emitting device is disposed between the color conversion layer and the first base. 
     
     
         13 . The display apparatus according to  claim 11 , wherein the display apparatus further comprises: a second base opposite to the first base, the light-emitting device is disposed on the second base, the color conversion layer is disposed on a side of the first base facing the second base, and the first packaging layer is disposed between the color conversion layer and the light-emitting device. 
     
     
         14 . The display apparatus according to  claim 11 , wherein the preset color is blue, the plurality of light-exiting parts of the color conversion layer constitute a plurality of repetitive units, each repetitive unit comprising: a red light-exiting part configured to emit red light, a green light-exiting part configured to emit green light, and a blue light-exiting part configured to emit blue light. 
     
     
         15 . The display apparatus according to  claim 11 , wherein the display apparatus further comprises:
 a second packaging layer covering the plurality of light-emitting devices; and   a receiving structure layer on a side of the second packaging layer away from the light-emitting devices, wherein the receiving structure layer has a plurality of receiving slots therein in one-to-one correspondence with the plurality of light-emitting devices, and the light-exiting part is disposed in the receiving slot.   
     
     
         16 . The display apparatus according to  claim 11 , wherein the display apparatus further comprises:
 a color filter layer on a side of the color conversion layer away from the light-emitting devices, wherein the color filter layer comprises a plurality of color filter parts each corresponding to one of the light-exiting parts and having the same color as light emitted from a corresponding light-exiting part; and   a black matrix on the side of the color conversion layer away from the light-emitting devices, wherein an orthogonal projection of at least a part of each light-exiting part on the first base does not overlap an orthogonal projection of the black matrix on the first base.   
     
     
         17 . A method for fabricating a packaging structure, comprising:
 forming a packaging body on a first base; and   forming a first packaging layer on a side of the packaging body away from the first base, wherein forming the first packaging layer comprises: sequentially forming at least two inorganic layers, wherein the at least two inorganic layers comprise a first inorganic layer closest to the packaging body, and the first inorganic layer contains carbon atoms and nitrogen atoms,   wherein along a direction away from the packaging body, the at least two inorganic layers have sequentially increasing refractive indexes.   
     
     
         18 . The method according to  claim 17 , wherein each inorganic layer is formed by a vapor deposition process. 
     
     
         19 . A packaging structure, comprising:
 a first base;   a packaging body on the first base; and   a first packaging layer on a side of the packaging body away from the first base and comprising at least two inorganic layers sequentially stacked, wherein the at least two inorganic layers comprise a first inorganic layer closest to the packaging body, and the first inorganic layer contains carbon atoms and nitrogen atoms,   wherein the packaging body comprises: a color conversion layer, and the color conversion layer comprises quantum dots.